Brake mechanism.



W. E. GOFFIN.

.BRAKE MECHANISM.

APPLICATION III-ED JAN. 25, 1911.

Patented June 6, 1911.

.WETNESSES in cross section,

staff mounted in suitable brackets 3 and 4 rests upon an outwardly projecting or over- BRAKE MECHANISM.

994,698. Specification of Letters Patent.

filed January 25, 1911.

Patented June 6, 12am. Serial No. 604,571.

Application washer 9,which engages the bolt head. The pawl is provided at each end withan outwardly projecting overhanging lip 10, which projects. over the top of the ratchet wheel and prevents the latter from working upwardly on the brake staff. The wheel is thus prevented from from the pawl. I also preferably cast inte- To all whom it may'concem:

Be it known that L'WALTER E. Corrm, a resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Brake Mechanism, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speclfication, in which gral with the bracket 3 an upwardly pro- 5 Figure 1 is a plan view, showing a porjecting stop 11 of any suitable form, which tlon of a car provided with my improved is arranged to prevent rotation of the pawl beyond a predetermined throw. This stop is so arranged as to hold the projecting lip over the wheel when the pawl is retracted, thus allowing the pawl its limited swinging brake mechanism; and side elevation of the away.

My invention relates to brake mechanism of the brake staff and ratchet wheel type, and is designed to provide a simple and improved means for preventing upward movement of the ratchet wheel on the stall".

To that end, the invention consists in forming the ratchet pawl with a lip or'projection which engages the wheel to prevent its upward movement. In the drawings, 2 is a vertical brake Fig. 2 is a sectional same partly broken ment with the top of the ratchet whee I The advantages of my invention result from the simple and effective means for preventing upward creeping of the ratchet Wheel. The use of a holding-down mechanism separate from the pawl is avoided, and the device made .cheaper, lighter and simpler. I claim: on the car. The brake staff may be square and the ratchet wheel 5 is -a square hole to fit loosely or-the shaft may be of any ratchet wheel journaled therein, provided with engaging said wheel, said pawl having a thereon, as shown; round with a key for the wheelfor other desirable form.

In normal position,

vent movement along'the shaft in one direction, the base plate having a fixed stop projection which engages the pawl to prevent the latter being moved to a position in which the said rejection can disengage the wheei; substantially as described.

In testimony whereof, I have hereunto set the ratchet wheel 5 hangin portion of the bracket 3 and a circular' cIepending boss 6 on the wheel fits within a correspondingly shaped hole in the bracket. The bracket 3'is secured-to the car my hand. by bolts 7, the central one of which also WALTER E. COFF-IN. serves as a pivot pin for the awl 8, which Witnesses: is of .the usual double-ended ty e The CHESTER K. BRooKs,

HARRY E. ORR.

pawl is held in position on the olt by a movement, while keeping its lip in en agepro ect-ion overlapping the wheel to pre-.

becoming disengaged In .a brake mechanism, a base plate, a V

and a' pawl 

